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Re: Issues with multi-hop in TRAMP
From: |
Michael Albinus |
Subject: |
Re: Issues with multi-hop in TRAMP |
Date: |
Sat, 16 Feb 2019 17:20:18 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Jordan Wilson <jordan.t.wilson@gmx.com> writes:
> Hi Michael,
Hi Jordan,
> On 2019-02-16 (Sat) at 09:51 (+0100), Michael Albinus
> <michael.albinus@gmx.de> wrote:
>> Have you tried sole "/plink:username@machine:"?
> They work fine. No problems connecting to that machine with plink.
Fine.
>> Do you use packages which keep information over Emacs sessions, like
>> recentf.el or desktop.el?
> I use recentf.el. It can see in `recentf-open-files' files retrieved
> using that multi-hop are labelled like
> "/sshx:username@machine2:/home/jordan/hello.txt"
Well, that's the problem. Multi-hop remote files, as you use them, are
called "ad-hoc". The reason is that this syntax is intended for the
moment, and not suited to survive Emacs sessions. Tramp reduces the file
name "/method1:host1|method2:host2:" to "/method2:host2", just for
convenience. The needed hop for host2 is kept internally during the
Emacs session.
When you open a new Emacs session, and recentf reads its initial file
with the shortened file name, this information is lost.
So you shall either declare multi-hop by means of
`tramp-default-proxies-alist' (see the Tramp manual, node "Multi-hops"),
or you shall set `tramp-save-ad-hoc-proxies' to t (see the Tramp manual,
node "Ad-hoc multi-hops"), which stores that information persistently.
Anyway, it is an error in recentf to store such shortened remote file
name, missing the ad-hoc multi-hop information. I will check, whether
this could be fixed.
(Maybe you write an Emacs bug report about, in order not to forget? I
cannot promise that I will work on this just now.)
> But even if that was somehow the cause, that doesn't
> explain why this issue appears in "emacs -Q".
Indeed, I also don't know what's up with "emacs -Q" here. To be
investigated as well.
> Regards,
Best regards, Michael.